105

LEUCOPOGON COLL/NUS (EPACRIDACEAE) AND ASSOCIATED TAXA IN TASMANIA

by J.M. Powell

(with four text-figun;s and two plates)

Study of Tasmanian herbarium specimens currently under the name L. collinus (Labill.) R. Br. indicate that two other taxa are included within it, namely L. pilifer Wakefield, known previously fromVictoria, and L. oreophilus Powell sp. nov. A key to the three species is given and each is described. The history of the names, problems associated with early collections and the distinction of early varieties are discussed. Key Words: Epacridaceae, flora, Tasmania.

In BANKS, M.R. et al. (Eds), 1991 (31:iii): ASPECTS OF TASMANIAN BOTANY-A TRIBUTE TO WINIFRED CURTIS. Roy. Soc. Tasm. Hobart: 105-112. https://doi.org/10.26749/rstpp.124.2.105

INTRODUCTION EARLY NAMES AND SPECIMENS OF L. COLL/NUS AND L. CILIATUS Leucopogon collinus is a widespread common species in Tasmanian heathland vegetation and is found also in Leucopogon collinus (Labill.) R.Br. Victoria and New South Wales. In Tasmania it exhibits considerable morphological variation in leaf form and Leucopogon collinus was described originally by size, and in flower size. This led to a number of varietal, Labillardiere (1804-6) as collina from form and even other specific names being used by early specimens collected in the Storm Bay area (labelled botanists and collectors. More recently this species has "Capite Van-Dieman") according to Nelson (1974). been considered as a "complex" that requires further Labillardiere described the as a foot [0.3 m] high, study. Curtis (1963) noted that "Although certain of the with the leaves scattered, reddish when young and flat, variants are very distinctive in appearance, intermediate oblong, sessile, and serrate-ciliate. The flowers were forms occur and further work is necessary to determine borne on simple or paired oblong racemes, often their status." terminal, and the calyx and were 5-7 nerved. The Current study of herbarium specimens under this anthers were attached at the middle. The ovary was name indicates the presence of at least three taxa. One ovate, the style short, and the hypogynous disc had 5 of these is Leucopogon pilifer Wakefield, described in somewhat acute scales. The drupe was 5-locular, ovate­ 1956 from Victorian material and now recognised as oblong, with a solitary seed developing. also present in the central and northeastern mountains Labillardiere's diagram (1804: 47, tab. 65) shows of Tasmania. Another, sympatric withL.pi lifer, is named flat, narrow-elliptic leaves, 6-9-flowered spikes and in this contribution; it was illustrated and described the drupe 2-locular with three other vascular bundles as part of a variety of L. ciliatus Cunn. ex DC. possibly indicating aborted locules. Specimens labelled distinguished by Hooker (1860) but not formally named. as from his collections held at K, MEL and in the De L, collinus is retained as a morphologically complex Candolie Herbarium match well with the diagram. Study species with apparently continuous variation in a number of the K and MEL material indicates that the ovary is of attributes. Future field studies of populations and 2-locular, not 5-locular as stated. morphometric analysis may lead to a number of taxa Brown (1810) described L. collinus from his own being distinguished within this complex but this has not specimens collected from heathlands near Port been possible on the basis of the herbarium material Dalrymple and the Derwent River (Bennett 2442 at currently available. K!). He noted that the spikes terminated short lateral branches, and that the leaves were oblong-linear, slightly acute, blunt, erect, smooth, slightly convex, the margin recurved, denticulate. He placed S. collina Labill. in synonymy. 106 J~M. Powell

PLATE 1 (A) [sotype collection of Leucopogon ciliatus Cunn. ex DC. (B) Close~up of part of this specimen showing characteristic Leucopogon collin us attributes ofrecurved leaf margins, and multiflowered spikes exceeding leaves.

The leaves of Brown's specimens are mainly oblong disposition and type of margin. He cited various Gunn or sometimes elliptic and the spikes are 8-17-flowered. specimens as typical of each and placed De Candolle's De Candolle (1839) accepted both of the earlier variety brownii and S. collina Labill. in synonymy. descriptions and distinguished two varieties: Study of all the specimens listed by Hooker for his - a, billardieri, based on the Labillardiere specimen three varieties ( var. a: Gunn 1191, Gunn 211, Gunn which he noted as having flat leaves that were ciliate 34; var. p: Gunn 1190; and vaL y: Gunn 1188, Gunn over their whole length; 1189), indicate that they all belong within L. collinus. - p, brownii, based on Brown's specimen from Port These specimens show some variation in leaf shape, in Dalrymple, characterised by having leaves with length and width, density of marginal teeth and recurving recurved margins that were ciliate-denticulate in both of the margin, and in calyx shape and marginal hairiness, directions. but there are no obvious disjunctions in the variation, or Hooker (1860) distinguished three varieties of L. collinus other attributes that can be used as a basis for differ­ on the basis of plant height, leaf length, shape and entiation. collinus in Tasmania 107

Leucopogon ciliatus Cmm. ex DC. of the rx specimens iudicate that they are L. coliinus and confirms that L. citiatus Cunn. ex De CandoHe (1839) published Allan DC. is synonymous. The materials listed under variety manuscript name ciliatus based on ~ are different and there are two taxa included within Cunningham specimen collected on the wesl coast of this Gunn 1192 is, in fact, L. pili/er Wakefield, Tasmania. This specimen appears to be a duplicate of characterised cilia on the leaf it is that held at Kew which has the number 801l8lY and described in detail below. The specimens numbered additional information "A branching shrub on dry Gunn 1984 and Gunn 2:048 both have short, broadly hills, on the shores of Harbour VD Land leaves that are concave or flat, with January 1819" (pI. LA, B). The plant was described cilia much shorter ,ban in L. and finer and more De Candolle as having crowded, puberulous branchlets, spaced than in most spcci.mens of L. collinus. This with the leaves linear-oblong with blunt apex, 6-8 mm is the taxon illustrated in Hooker's tabula 75A and now long, fairly fiat, ciliate and both sides. The described in detail fud as a new spikes were tenninal, 8--10 mm long, almost solitary, L. DC., in synonymy Hooker, is slightly longer than the leaves, 9-lO-fiowered, with the v(}Im NIP' not,nl,?"",' (DC.) Druce. peduncle puberuJent. The flowers were dense, the corolla Bentham (1869) mcluded L ciliatus Cunn. ex DC. in lobes very hirsute above. L. collinus (LabilL) RBr. He stated: The specimens appear to be typical of a robust form "The commonest fonn in Tasmania is erect, of L. collin us that has dense, convex, relatively short shrubby, and pubescent. From mountain leaves, and many-flowered spikes that exceed the leaves grassy situations the specimens show a small (pI. IE). diffuse with slender branches and small On the label, Cunningham commented that the species almost flat leaves. Cunningham's specimens of was "closely allied to L. vi ilosus R.Br. a plant of the So. L. ciliatus have more the habit and longer leaves Coast" but De Candolle (1839) noted that that particular of the common foml, but they are nearly flat. species was unknown to him. L. villosus R.Br. is pa11 They answer very well to Labillardiere's own of a Western Australian complex considered under the name L. obovatus (LabilL) R.Br. or L.revolutus R.Br. Bentham's concept is obviously a broad one, including Hooker accepted L. ciliatus although he noted that it within L. collin us both L. pilifer and the new species. "may be a variety" of L. collinus (Hooker 1860: 25 I). He described it as a small shrub, the branches sub-erect or decumbent, the leaves small, elliptical or oblong­ Leucopogon pilifer Wakefield elliptic, acuminate, blunt-tipped, flat, glabrous and ciliate, and the spikes sub-solitary, terminal, and This taxon, described by Wakefield (1956) as 4-8-flowered. He considered that De Candolle's Leucopogon piliferus (grammatj£ally incorrect -­ L. petiolaris, L. collinus vaL fl.., billardieri and pilifer = bearing hairs), is based on a Willis specimen Labillardiere's colli na were possibly as holotype, but in the notes, specimens collected by F. synonyms. Mueller are mentioned as variously labelled as L. Hooker (1860) distinguished two varieties of collinus b. alpinus and S. alpin us (see MEL 78512, MEL L. c iliatus : 785(2). Mueller (! 867-68) did not fonnally narile these - var. a, described as robust, with erect branches and taxa; he mentioned them under Styphelia col/ina stating many flowered spikes; based on Gunn 852 and Clunn "in the highest of Australia and Tasmania a 1191 collections, this variety was "not uncommon in beautiful small tufted fomi barely 1 1/2 inches various parts of the colony"; other specimens, collected [38 mm] high, nevertheless with abundant flowers, by A. Cunningham, Bynoe, Milligan, and Gunn were occurs. Here I would L. ciliatum (A. Cunn. also cited. in Cando PI'. vii. 746). A pubescent overall - var. [3 described as smaller, with slender, short, has been collected in the Victorian Ranges. The decumbent branches, the leaves elliptic-ovate, alpine form everywhere we see to have solitary occasionally with long cilia, and the short, few­ flowers and often smaller leaves and tlowers, flowered; based on Gunn 1192, Gunn 1984 and Gunn decumbent stems" [author's translation]. 2048, this variety was illustrated as tabula75A (Hooker 1860); it was round in "Alpine situations, Chilton Hills, Lake St Clair, Surry Hills, sUITlmitofWestem Mountains etc., Gunn - Oct.--Dec.)". 108 1.M. Powell

KEY TO THE TAXA

1. Plant erect, usually 0.3-0.6 m but up to 1 m Lencopogon flr,?{nU'll,m:.~ sp. nov. leaf shape varying on a plant from ovate to oblong or combinations of these; leaf margin entire 10 coarsely collinG affinis sed denticulate-ciliate ...... L. collin us

1. mats with foliis ex parte occultis. constant in shape on a Typus elliptic; leaf margin either Ho!otype: Tasmania: Cradle Mountain area, track to and evenly ciliate-·denticulate...... , 2 Marions Lookout, 41°39'5 145°57'E, 1100 m a.s.1., J.M. Powell 1546, 29.xi.l981 (NSW, 2), HO, 2. Leaf margin ciliate-denticulate; branchlets CANE. scabrous to hispid; flowers in telminul spikes, with 3-6 flowers/spike; fruit apex rounded with Variants Included persistent style-base ...... L. L. ciliatus var. ~ of Hooker (l860) in part. Hooker's tabula 75A, based on Gunn 1984 (K, NSW 223220) 2. Leaf margin long-ciliate; branchlets sericeous; and Gmm 2048 (K, NSW 223219) illustrates this species. flowers in terminal and upper axillary spikes, with 4-9 flowers/spike; fruit flat-topped or apically Description depressed ...... L. A prostrate or diffuse mat-forming shrub with branches up to 0.1 m long. Stems spreading to erect, dark brown, more or less glabrous; branchlets yellow- to red-brown, scablid to hispid. Leaves crowded towards the branch tips, erect, broadly and shortly elliptic, 2.7-6.3 mm long, 1.2-2.2 mm wide (length:width '" 1.7-3.9: 1); apex broadly acute, concave above, with a very small callus on abaxial surface; base tapering to a 0.3--0.6 mm long petlolar area; lamina thick, usually flat, concolorous, glabrous; venation inconspicuous above or occasionally the midrib sunken towards the base, and with three equal sub-parallel veins obvious below, the outermost branching to the margin; margins shortly and evenly ciliolate or sometimes more coarsely so. Flowers inconspicuous, partly hidden by the leaves, erect, white, borne in terminal spikes on short shoots; spikes 2---6 mm long, usuaHy with 3-6 flowers per spike, and a bud-like rudiment at the apex. Peduncles hispid. Bracts and bracteoles ovate, broadly acute, glabrous except for the ciliolate margins; bracts scarious, unifOlm in size, 0.8--0.9 mm long, 0.6-0.8 mm wide, striate-veined; bracteoles 0.9 -(.2 mm long, 0.5-1 ,0 mm wide, keeled. oblong, 1.3-1.7 mm long, 0.5- 1.0 mm wide, broadly acute or sometimes obtuse, the midrib thickened at the apex, glabrous except for the ciliolate margins. Corolla:tube shorter than the sepals, very broadly U-shaped, 0.7-1.2 mm long, 0.9--1.7 mm wide at the throat, glabrous; lobes longer than the tube (lobe length:tube length = 1.1-1.8: 1), erect at the base, spreading or recurved above, 0.9--1.3 mm long, 0.6- 0.9 mm wide, acute or broadly acute, externally glabrous, internally bearded overall with the hairs on PLATE the upper half long and dense, on the lower half sparser . Leucopogon oreophilus Powell. and much shorter. Anthers half-exserted, 0.6-0.9 mm ,eUCOIJm(on ('o!linus Tasmania 109

FIG.I-Leucopogonoreophilus Powell showing habit FlG. (scale = 5 mm), leaf (scale = 2 mm) and margin (scale (scale"" 5 mm), = 2 mm), =0.5 mm; allfromholotype) andfruit (scale = 0.5 mm; section andfruit (all at scale == 1 mm; specimen Gordon, HO 3554). specimen J. M. Powell 1543 ). long, with 0.1-D.2 mm long sterile filaments 0.1- status may reassessment after further field 0.35 mm long, attached above the middle. Ovary usually studies. spherical, 0.3-0.5 mm diam., slightly lobed, glabrous, 2-celled; style O.15-D.2 mm long, cone-shaped at the Selected Specimens Examined base, not exserted from the corolla tube; Central (6) (regions as Orchard 1988) c. 0.1 mm high; nectary annular, lobed, 0.25--0.3 mm Comber 2163 (K); Gordon s.n. (HO 3554). West Coast high, glabrous. Fruit just exceeding calyx, oblong, (5)-Jackson (HO 90298). South West (10) - Moscal 2.2 mm high, 1 mm wide, somewhat compressed 9377 (HO 95150); Elliott s.n. (HO 3551). [Further laterally, smooth or two-lobed, glabrous, with rounded details of specimens listed in this paper, e.g. collecting apex, the style-base apparently persistent. site and date, are available from the Herbaria noted or from the Royal Society of Tasmania Library (Archives), Derivation of Name GPO Box 1166M, Hobart, Tasmania, Australia 7001.1 The specific epithet "oreophilus" (Greek", mountain­ loving) refers to the habitat of this species. Leucopogon pilifer Wakefield Distribution and Ecology (fig. 2) Recorded mainly from high altitudes (>950 m) in the Cradle Mountain area, but also from West Coast and Typus South West ranges (fig. 4). Occurs in heath associations Ho!otype: Head of Wild Horse Creek, Bogong High on rocky slopes with peaty soil, or in rock crevices with Plains, northeast Victoria, near Kellys Hut, c. 1500 m skeletal wet soils. The species flowers between a.s.l., J. H. Willis, s.n. 19.i.1947 (MEL 68482). November and February, with fruit recorded in January. Variants Included Variation L. ciliatus Cunn ex. DC. var. ~ Hooker (1860) in part, This species appears to be relatively uniform in leaf based on Gunn ] 192 (K, NSW 223228). shape and size compared with L. collinus, and is pros­ trate and mat-fanning in habit. Eighteen specimens Description were examined (full list available from the author); one, A dwarf, diffuse, often mat-forming shrub, with collected from west of Granite Tor, Central Highlands branches O.02--D. I m long. Stems red· brown, (Moscal 9451), has a more robust, densely twiggy and densely to sparsely sericeous; branchlets yellow- to apparently erect habit, and in leaf and floral attributes red-brown, smooth, sericeous. Leaves erect to sub··erect, is at the upper extreme of the L. oreophilus range; its usually oblong or elliptic, sometimes oblong-elliptic, 110 J.:'I1. Powell

01 ovate, 3.1-5.4 (-7.3) nun long, 0.7-·1.3 mm material, while the New South Wales collections have wide (length:width =0 2.8-6 (-6.5) :1); apex acute, only sparse cilia. concave above, with a callus on abaxial surface; base tapering to a petioiar area 0.3-0.5 mm long; lamina Selected Examined thin, Hat or slightly convex abaxially, concolorous, Tasmania: Ben Lomond (8) -KJ. Williams & J. Gram P"",,,,u,,' venation inconspicuom, above except for the s.n. (HO 116315). Central Highlands (6) - S. J. midrib sunken over at least the lower half, below with Jarman & R. K. Crowden s.n. ( HO 111464); 1M. 3-5 equal veins obvious; margins straight Powell 1543 (NSW, HO). or recurved, with long silky hairs scattered Victoria: East -- 1. H. Willis s,n. (MEL towards the apex or overall, particularly obvious in the 502549); P. K. Gullan 238 (MEL 52871 ) Flowers erect, white, New South Wales: Northern Tablelands -- R. Story borne in terminal and uppennost axillary 7535 (CANS, NSW); P. Burgess 52 (NSW). spikes 3-6 mm long, usually with 4·-9 flowers per spike and a bud-like l1ldiment at the apex. Peduncles pubescent. Bracts and braeteoles ovate, acute, glabrous Leucopogoll collin us (LabilL) RJk (fig. 3) except forthe ciliotate bracts scarious, uniform in size, 0.9-1 mm long, 0,6-0.9 mm wide, striate­ Basionym veined; bracteoles 0.9--1 mm long, 0.7--0.8 mm wide, ,'I\lnYII~1f{1 collina Labillardiere (1804). keeled, Sepals triangular to ovate, 1.4-1.6 mm long, 0.8-0.9 mm wide, acute, striate-veined, the midrib Type thickened somewhat towards the apex, glabrous except Tabula 65 in Labillardiere PI. Nov. Holl. i. 47 (1804). for the ciliolate margins. Corolla: tube shOiter than the Lectotype being investigated. narrow, 0.9-102 mm long, 0.7-0.8 mm wide, glabrous extemally, pubescent inside to the base of the Synonyms anthers; lobes shoner or equal to the rube (lobe L. eollinus (LabilL) R.Br. var. a, billardieri DC. Prod. length: tube length", 0.08-1: 1), spreading, 1-L2 mm 7.748 (1839), based on the Labillardiere specimen long, 0.35--OA mm acute, extemally glabrous, (?syntype) held in the De Candolle Herbarium. internally densely bearded with long hairs. Anthers L. collinus (Labill.) R. Br. Val'. brownii DC. Prod. 7.748 0.6-(17 mm long, with 0.1 mm long sterile tips; filaments (1839), based on a specimen collected by Robert Brown c. 0.15 mm long, attached above the middle. Ovary (with the legend in his handwriting) "Leucopogon ovoid, 0.3 mm high, 0.25 mm wide, somewhat lobed, collinus prodr 543 Port Dalrymple" held in the De glabrous, 3-celled; style 0.2 mm long, not exserted Candoile herbarium, here designated as lectotype. from the corolla tube; stigma 0.05-0.1 mm high; nectary L. ciliatus Cunn. ex DC. Prod. 7.748 (1839), based on annular, lobed, 0.15-0.2 mm high, glabrous. Fruit Cunningham specimen held in De Candolle herbarium exceeding the calyx, oblong, 1.5·--2 mm high, (with the legend in Cunningham's handwriting) 1-1.1 mm wide, apically depressed, slightly ridged, "Leucopogon ciliatus C. closely allied to L. villosus Br. glabrous, with the style apparently persistent. W coast of Van Diemans Land Jan 1819 AC.", here designated as lectotype. Distribution and Ecology Found in Tasmania mainly in the Central Highlands Variants Included (fig. 4) at altitudes above 600 m forming patches on L. collinus vars a, ~, yof Hooker (1860), based on var. wet peaty soil in subalpine heath-shrubbery, in rock a -- Gunn 1191 (NSW 223384), Gunn 211 (K), Gunn crevices on steep slopes, below snow gums on bouldery 34 (K, NSW 223233, EM); var. ~-- GUHn 1190 (K, plains with yellow clayey soils. In Victoria found on NSW 223386, BM); and var. 'Y -- Gunn 1188 (NSW the plains of East Gippsland, and in New South 223396, K, EM), Gunn 1189 (K). L. ciliatus Cunn. ex Wales at Barrington Tops in the Northern Tablelands. DC. var. a of Hooker (J 860) based on Gunn 852 (NSW Flowers November-December, with fruit in January, 223378, 223379) and Gunn 1191 (K, NSW 223380, young buds in May, 223384).

Variation Description Litlie variation is exhibited by this species despite its An erect, slender or compact shrub, 0.3-1 m high, 0.1- wide distribution. Twenty-five specimens were studied 0.3 m across. Stems dark red- to grey-brown, glabrous (full list available from the author); the Victorian or scabrous; branch lets red-brown, scabrous to hispid. specimens have somewhat longer leaves and denser Leaves erect to sub-erect, variable in shape on a single cilia on the margins compared with the Tasmanian plant, some being ovate, oblong or elliptic, or 111 combinations of these, 3 -13.4 rnm mrn wide (length:width == 2.2~8.7 (~lL2) : 1); apex acute to broadly acuie, c~ncave above, often recuIved. with a callus; base broadly tapering to 0.3~1 mm long; lamina sometimes flat, concolorous or somewhat glabrous or sc abrous towards the base above; venation inconspicuous above, with the midrib sunken overall or over the lower half, striate below; margins usually recurved, sometimes entire but coarsely ciliate-denticulate towards Ihe apex not overall. inflorescences terminal and upper axillary, often forming leafy dusters up to 20 mm and wide, over-topping the leaves, sometimes terminal only on short shoots; single 5- D mm long, with 10-29 (rarely 7 orless) flowers per and a bud-like rudiment at the apex. Flowers the buds often pink-tipped. Peduncles scabrous. Bracts scarious or rarely more leaf-like, ovate-oblong, Oo7~1.7 mm long, 0.5~ 1.0 mm wide, broadly acute or obtuse, striate­ veined, glabrous, with ciiiolate margins. Bracteoles ovate, 0.7~1.7 mm long, 0.6--1.0 mm wide, broadly FIG. 3·-· Leucopogon collinus acute or obtuse, keeled, glabrous, with ciholate margins habit (scale oc 5 mm; J. /"m.'Ifi.Ifl~ and often with a tuft of longer hairs at the apex. and transverse section (scale = 2mm) ovate-oblong, often reddish distally, 1.3~1.9 mm '" 0.5 mm; S, G. nannll{();CI1 0.6-1.0 mm wide, broadly acute, the midrib thickened at the apex, glabrous, with the margins ciliolate or often ciliate towards the apex. Corolla: tuhe shorter than the trend towards Hatter leaves sepals, V-shaped, 0.8--1.4 mm long, 1.1-1.3 mm wide and shorter spike appeared with the West Coast at the throat, glabrous extemally, sparsely pubescent specimens, no significant differences were found. Some inside to the base of the anthers; lobes usually longer than specimens from the West Coast and South West regions, the tube (lobe length:tube length '" (O,9)~1.l-1.8:1), namely Moscal 5028 (Mt Frankland, 19.xii. J 988, HO erect to spreading, 1.3~ 1.6 nun long, 0.5-0,55 mm wide, 111211), Mosca] 4922 (Mt Balfour, 17.xii.1983, HO broadly acute, externally glabrous, internally densely 77123) and Brown 371 (Cox Bight, PtEric, 23.iii.1984, bearded with the hairs longer over the upper half of the HO 78576), Collier 2221 (The Coronets, 24.i.1987, lobe. Anthers 0.7-1.0 mm long, with 0,15--0.25 mm HO 103910), Willis MEL 526752 (westem slopes of long sterile tips; filaments 0.2--0.5 mm long, attached Mt Eliza, 04.1.1977) and Milligan 807 (Birchs Inlet above the middle. Ovary spherical to somewhat ovoid, Mountain Range, 25.xi.1846, HO 3561) respectively, 0.35-0.45 mm diam., smooth to slightly lobed, glabrous, show similarities to L. in some attributes, 2-celled; style cone-shaped at the base, 0.2-·0.3 mm but in all cases they fall within the range of L. collin us long, not exserted from the corolla tube; stigma 0.05-- all the basis ofleaf (leaflength:width ratios), and 0.1 mm high; nectary annular, lobed, 0.1-0.3 mm high, also most have somewhat longer spikes and more glabrous. Fruit greatly exceeding the calyx, oblong, flowers/spike than recorded for L. and 2.35~2.5 mm high, 0.85~ 1.4 mm wide, tapering apic­ appear to be erect in habit Further field studies may ally with persistent style, ribbed or slightly ridged, glabrous. suggest some reassessment of the limits of these two taxa. Variation As the morphological variation exhibited was Distribution amI. Ecology considerable and there appeared to be specimens In Tasmania widespread (fig. 4) and common in sandy intemlediate between L. oreophilus and L. collinus, coastal heath!ands and scrub, and in the detailed study of 66 Tasmanian specimens from six understorey of low altitude dry sc\erophyll woodlands. botanical-geographic regions was undertaken. The Flowers throvgh most of the year June~.Iuly), results confirmed the continuous nature of the variation with the fruit developing rapidly, In Victoria found in in leaf shape, size and margin structure and in East Gippsland and in New South Wales restricted to inflorescence length and flower numbers in L. collinus the southernmost parts of the South Coast. 112 JM. Powell

is widespread in coastal and lower altitude heathlands and flowers throughout the year, L pilifa shares with L oreophilus the high altitude areas of Tasmania, and has a similar growth-form and also short, few-flowered int1orescences. It is strikingly different, however, from both L. and L. collin us in having long silky hairs on the leaf margin and sericeous branchlets. It differs also in having nan-ower, oblong leaves, and flowers that have more acute parts, a narrow corolla tube and corolla lobes shorter or equal to the tube; the fruit differs in depressed apically.

ACKNOWLEDGElVrnNTS I should like to thank Jean Jarman for checking recent specimens at the Tasmanian I-lerbmium for me, and· Tony Orchard for forwarding a loan of these at short FIG. 4 --- Distribution of three species in Tasmania. notice to NSW Thanks also to Dr Mary Tindale for L collinlls, L pili fer, L oreophilus, indet. ?L collinus. assistance with the Latin diagnosis and helpful Bars or query next to the symbol indicate an imprecise comments on the draft manuscript, to Surrey Jacobs for record. Natural region numbers and boundaries photography at Kew, and to David Mackay and Bob (shmvn dashed) follow Orchard (1988) except that Makinson for assistance with the diagrfims. region 10 (South West) here includes the small regions 11 (Aft Pield) and 12 (Mt Wellington). Names of the REFERENCES here indicated numerals, are given under BENTHAM, G., 1869: FLORA AUSTRALIENSIS: A \m'C·IIYlPI1.< Examined" . DESCRIPTION OF THE PLANTS OF THE AUSTRALIAN TERRITORY, VOL. 4. Reeve, Selected Tasmanian Specimens Examined London, North West (3) K. L Wilson 6396 (NSW); J.M. BROWN, R., 1810: PRODROMUS FLORAE NOVAE HOLLANDlAE ET INSULAE VAN·DIEMEN. Powell 1582, 1588 (NSW). West Coast (5) -- K.L Taylor, London, Wilson 6327 (NSW); R.H. Cambage 2561 (NSW CURTIS, W. M., 1963: THE STUDENT'S FLORA OF 223230). South West (10) --M. Davis 1267 (HO 3552, TASMANIA, PART 2. Government Printer, Tasmania. MEL 75787); Giblin s.n. (HO 3566). South East (9) -­ DE CANDOLLE, A, P., 1839: PRODROMUS SYSTEMATIS L Olsen 123 (NSW); J.M. Powell 544, 545 (NSW). NATURALIS REGN! VEGETABlLIS, VOL. 7. North East (4) - N.T. Burbidge 3060 (CANB, HO Treuttel & Wurtz, Paris. 3588); \v'M. Curtis s.n. (HO 3560, HO 3561). Midlands HOOKER,1. D., 1860: THE BOTANY OF THE ANTARCTIC (7) -_. Hamilton 32 (HO 3595); S.G. Hannaford herb VOYAGE OF fl. M. SHIPS "EREBUS" AND (NSW 223235). "TERROR". IN THE YEARS 1839-1843. VOL. 3. FLORAE TASMANJAE. Reeve, London. LABlLLARDlERE, JJ.H. DE, 1804-6: NOVAE HOLLANDIAE RELATIONSHIPS PLANTARUM SPECIMEN. Huzard, Paris. MUELLER, F. J. H. VON, 1867-68: FRAGMENTA PHYTO­ L. oreophilus and L. collin US, although very closely GRAPllIAE AUSTRALIAE, VOL. 6. Ferres, related, differ in a number of attributes in their typical Melbourne. ' fonn .- in habit, in the range of leaf shape shown on NELSON, E. c., 1974: The locations of collections and individual (reflected clearly in the mean and collectors of specimens described by Labillardiere range of leaf length:width ratios), in thickness of the in NOVAE HOLLANDIAE PLANTARUM lamina and usually in the structure of the leaf margin. SPECIMEN - additional notes. Pap. Proc. R. Soc. Tasm. 108: 159-170, The flowering spikes appear to be always tenninal in ORCHARD, A. E., 1988: A natural regions map for Tasmania, L. oreophilus; they are shorter and fewer flowered than Pap. Pmc. R. Soc. Tasm, 122: 47-51. in L. collin us and the !lowers differ somewhat in shape WAKEFIELD, N. A., 1956: Flora of Victoria: New species and and size of the parts, in the corolla lobes, anthers other additions - 8. Viet. Nat. 73: 58-60. and fruit. 1,. oreophilus occupies high altitude areas and has a relatively shOlt flowering season, while L. collin us (accepted 4 May 1990)

J,M. Powell National Herbarium ofNSW, Royal Botanic Gardens, Sydney,